1.What mass of sodium formate must be added to 500.0 mL of 1.00 M formic acid to produce a buffer solution that has a pH of 3.50?

Q: A buffer solution contains 0.239 M acetic acid and 0.420 M potasslum acetate. If 0.0243 moles of…

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Q: An aqueous solution contains 0.370 M nitrous acid. How many mL of 0.236 M potassium hydroxide would…

A: Solution: We know nitrous acid (HNO2) is a weak acid and KOH is the strong base. So they can form…

Q: An aqueous solution contains 0.464 M hypochlorous acid.How many mL of 0.364 M sodium hydroxide would…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

Q: An aqueous solution is prepared to be 0.221 M in sodium formate and 0.113 M in benzoic acid. (1) Is…

A: Solution:   (1):   Yes, it is a buffer solution. (2nd) and (3rd) part are solved in step no. 2 which…

Q: How many grams of solid ammonlum chloride should be added to 0.500 L. of a 0.128M ammonia solution…

A: Given:Buffer solution of ammonium chloride and ammonia solution. Ammonia solution = 0.128M Volume of…

Q: What mass of NH4Cl must be added to 0.750 L of a 0.100-M solution of NH3 to give a buffer solution…

A: Ammonia is a weak base and form a buffer solution with NH4Cl The pH of buffer is close to 9-10.…

Q: How many moles of sodium hydroxide would have to be added to 225 mL of a 0.404 M nitrous acid…

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Q: What mass of NH4Cl must be added to 500 mL of a 0.150 M NH3 solution to make a buffer with pH =…

A: Step 1: Here, the ammonia NH3 solution is weak base and NH4Cl is its conjugate acid. The pKb value…

Q: An aqueous solution contains 0.464 M hypochlorous acid.How many mL of 0.364 M sodium hydroxide would…

A: The reaction as follows,

Q: How does the buffer solution absorb the added H+ and OH- to make the pH change very small?

A: A buffer can be acidic or basic in nature. A buffer that contains a weak acid with its conjugate…

Q: 2. a) Calculate the pH of 0.12 mol/L ethanoic acid (K₂ = 1.7 x 105 mol/L). b) Calculate the mass of…

A: Since the given question is a multipart question, hence I solved first three parts according to…

Q: pH

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Q: An aqueous solution contains 0.447 M dimethylamine ((CH3)2NH). How many mL of 0.246 M…

A: we need to find the volume of 0.246 M perchloric acid added to form the buffer solution with pH…

Q: A buffer solution contains 0.427 mol of carbonic acid and 0.512 mol of sodium hydrogen carbonate in…

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Q: How many moles of potassium hydroxide would have to be added to 150 mL of a 0.363 M hydrocyanic acid…

A: Buffer solutions are the solutions containing a mixture of weak base and its conjugate acid or a…

Q: The conjugate base, A⁻ of a certain weak acid, HA has the molar mass 67.997 g/mol. What mass of this…

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Q: What amount of HCl gas must be added to 1.00 L of a buffer solution that contains [acetic acid] =…

A: Given,1.0L of a buffer solution that contains [acetic acid] = 2.0 M and [acetate] = 1.0 M .…

Q: An aqueous solution contains 0.339 M nitrous acid. How many mL of 0.370 M sodium hydroxide would…

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Q: What is the pH of a buffer solution containing 0.25 M acetic acid and 0.030 M sodium acetate?

A: The pKa of acetic acid=4.76 Given: The concentration of acetic acid [CH3COOH]=0.25 M  The…

Q: How many moles of NH4Cl must be added to 2.0 L of 0.10 m NH3 to form a buffer solution with a pH of…

A: Formula used :-  . pOH = pKb + log[salt]/[base] . pH + pOH = 14

Q: A buffer solution contains 0.326 M ammonium bromide and 0.377 M ammonia. If 0.0288 moles of…

A: Given: The molarity of NH4Br = 0.236 M. The molarity of NH3 = 0.337 M. The volume of the Buffer =…

Q: What mass of sodium formate must be added to 400 mL of 1.00 M formic acid to produce a buffer…

A: We have to find mass of sodium formate must be added to 400 mL of 1.00 M formic acid to produce a…

Q: A buffer solution is composed of 0.12 M CH3OOH and 0.11 M CH3COONA а.) What is the pH of this…

A: NOTE: please note according to our policy , we can only answer first three subparts of a question.…

Q: How many grams of NaHCO3 should be mixed with 4.500 g of NaCO3 to produce 150.0 mL of buffer with a…

A: The given weight of Na2CO3 is 4.500 g. The molar mass of Na2CO3 is 105.98 g/mol. The formula to…

Q: How many grams of solid ammonium bromide should be added to 1.50 L of a 0.106 M ammonia solution to…

A: From the relation, pOH is calculated as,

Q: How many moles of potassium hydroxide would have to be added to 225 mL of a 0.478 M acetic acid…

A: Here KOH was added in acetic acid. pKa of acetic acid is 4.75 Now, 225mL 0.478M CH3COOH =…

Q: sodium acetate, how many mL of 0.100 M NaOH can be added before the buffer capacity is reached?

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Q: 100. mL of 0.200 M HCl is titrated with 0.250 M NaOH.What is the pH of the solution after 50.0 mL of…

A: The reaction of HCl and NaOH is written below. HCl + NaOH→ NaCl +H2O The number of moles of base is…

Q: How much 5.50M  NaOH must be added to 550.0 mL of a buffer that is 0.0190 M  acetic acid and 0.0245…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: How many milliters of 1.0 M NaOH must be added to a 200 mL of 0.10 M NaH2PO4 to make a buffer…

A: Given  pH of the solution = 7.5  Volume of NaH2PO4 taken = 200.0 ml Molarity of NaH2PO4 taken = 0.10…

Q: An aqueous solution contains 0.313 M nitrous acid. How many mL of 0.351 M potassium hydroxide would…

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Q: A buffer solution is composed of 0.1 M CH3OOH and 0.2 M CH3COONA а.) What is the pH of this buffer?…

A: As per rule only three subparts of the first question can be answered. pH = pKa + log [salt] /…

Q: What mass of NaCH3COO should be added to 1.00 L of 0.100 M CH3COOH to produce a buffer solution with…

A: pKa(CH3COOH) = 4.74  Molar mass of salt(S) = 82.03 g/mol Assume, moles of NaCH3COO(S) = n moles…

Q: In what volume ratio should you mix 1.0 M solutions of NH4Cl and 1.0 M NH3 to produce a buffer…

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Q: What volume of 0.200 M HCl must be added to 250.0 mL of 0.300 M sodium mandelate to produce a buffer…

A: An acidic substance is the substance that can give H+ ions. They are corrosive and sour in nature.…

Q: You add 5.00 mL of 0.200 M NaOH to 50.00 mL of pure water, and to this mixture you then add 10.00 mL…

A: Given: Volume of NaOH V1 = 5.00 mL Concentration of NaOH M1 = 0.200 M Volume of solution after…

Q: (a) Calculate the pH of a solution that is 0.50 M acetic acid and 0.91 M sodium acetate. (b) How…

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Q: a. What is the pH of a buffer solution that is 0.12 M NH3 and 0.12 M NH4 +? К, for NH3 is 1.8 x 10-5…

A: The solution which resist the change in pH by addition of small amount of strong acid or a strong…

Q: An aqueous solution contains 0.443 M hypochlorous acid. How many mL of 0.213 M potassium hydroxide…

A: Given,  [HClO] = 0.443 M  [KOH] = 0.213 M  Volume of the solution = 125 mL  pH of buffer = 7.530…

Q: What is an acid-base buffer and what two components must be present? What important value do…

A: Buffer Solution is a water-based solution or aqueous solution that consists of a mixture of a weak…

Q: An aqueous solution contains 0.305 M methylamine (CH3NH2). How many mL of 0.365 M hydroiodic acid…

A: Interpretation-  To determine the volume ( mL) of 0.365 M hydroiodic acid would have to be added to…

Q: 200 mL of 0.1 M HCl is added to 400 mL of 0.1 M sodium acetate and water is added to give a final…

A: A buffer solution is the one which is made by adding a weak acid with its conjugate base. Any slight…

Q: Would a 0.010 M buffer solution or a 0.10 M buffer solution have a greater buffering capacity for…

A: Buffering capacity refers to the amount of added base or added acid that can be neutralized by a…

Q: An aqueous solution is prepared to be 0.405 M in sodium fluoride and 0.261 M in acetic acid . (1) Is…

A: Given 0.405 M in sodium fluoride and 0.261 M in acetic acid . Add HBr 0.133 moles in 1L solution

Q: How many grams of sodium acetate must be added to 0.100L of 0.150 M acetic acid to obtain a buffer…

A: As per our guidelines, we are supposed to answer?️ only one question. Kindly repost other questions…

Q: a. Suppose a solution contains 0.50 M NaHPO4 and 0.80 M NazHPO4. What pH should be expected for this…

A: Recall Henderson Hasselbalch equation to calculate pH of the given buffer solution          pH=pKa +…

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.479 M hypochlorous acid…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.